SBEACH: Numerical Model for Simulating Storm-Induced Beach Change. Report 4. Cross-Shore Transport Under Random Waves and Model Validation with SUPERTANK and Field Data.
1997
Wise, Randall A. | Smith, S. J. | Larson, Magnus
Beach erode and accrete in response to varying waves, water levels, and currents in the nearshore zone. During storms beach and dune erosion can occur quickly, causing shoreline recession and damage to property and upland resources. Hence, protection of upland infrastructure is a primary concern of coastal engineering. Beach nourishment is a preferred method of providing such protection, and many beach-fill projects have been designed and constructed in recent years. Design of such fills requires an understanding of and the capability to predict sediment transport processes that control beach response to storms. Numerical modeling of beach evolution can be applied to assist in project design. Numerical models provide a framework for predicting project response, objectively evaluating design alternatives and analyzing data to develop an understanding of coastal processes. The Storm-induced BEAch CHange (SBEACH) numerical model is an engineering tool for simulating beach profile evolution in response to storms. This report, the fourth in a series describing the development of SBEACH, describes recent model enhancements developed to improve calculation of sediment transport under random waves. A comprehensive evaluation of model capabilities in predicting beach and dune erosion is presented using high-quality laboratory and field data of beach profile change.
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